int main(int argc, char *argv[]) {
	init_imgproc();
	Viewer *view = viewOpen(200, 200, "Sails");
	Image *img = imgFromBitmap(argv[1]);
	
	for (int x = 0; x < img -> width; x++) {
		for (int y = 0; y < img -> height; y++) {
			char * pixel = imgGetPixel(img, x, y);
			char red = pixel[2];
			char green = pixel[1];
			char blue = pixel[0];
			
			if (red > green && red > blue) {
				imgSetPixel(img, x, y, 255, 0, 0);
			} else if (green > red && green > blue) {
				imgSetPixel(img, x, y, 0, 255, 0);
			} else {
				imgSetPixel(img, x, y, 0, 0, 255);
		
			}
		}
	}

	viewDisplayImage(view, img);
	waitTime(5000); 
	imgDestroy(img);
	viewClose(view);
	quit_imgproc();
	return 0;
}
Exemple #2
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int main(int argc, char * argv[])
{
	init_imgproc();
	clock_t start = clock();
	pid_t pid;
	int fdr, fdw;
	fdr = open("/dev/xillybus_read_32", O_RDONLY);				//get descriptor from PL output
	fdw = open("/dev/xillybus_write_32", O_WRONLY);				//get descriptor from PL input
	if ((fdr < 0) || (fdw < 0)) 
	{
	    perror("Failed to open Xillybus device file(s)");
	    exit(1);
	}
  	pid = fork();

	if (pid < 0) 
	{
		perror("Failed to fork()");
		exit(1);
	}

	if (pid)													//child process
	{
		close(fdr);
		uint32_t *tologic;
		char *buf;
		int rc, donebytes;
		Image * img = imgFromBitmap("lena.bmp");
	  	int pixel_count = img->width*img->height;
		uint32_t bytes_count = pixel_count*sizeof(uint32_t);
		tologic = malloc(bytes_count);
		if (!tologic) 
		{
			fprintf(stderr, "Failed to allocate memory\n");
			exit(1);
		}
		uint32_t x, y;
		for(x = 0; x < img->width; x++)
		{
			for(y = 0; y < img->height; y++)
			{
				tologic[x*(img->height)+y] = *((uint32_t *)(imgGetPixel(img, x, y))) >> 8;
			}
		}
		buf = (char *) tologic;
		donebytes = 0;
		while (donebytes < bytes_count)							//loop care about writing all bytes to PL
		{
			rc = write(fdw, buf + donebytes, bytes_count - donebytes);
			if ((rc < 0) && (errno == EINTR)) continue;
			if (rc <= 0) 
			{
				perror("write() failed");
				exit(1);
			}
			donebytes += rc;
		}
		imgDestroy(img);
		close(fdw);
		return 0;
	} 
	else 														//parent process
	{